Mitsubishi Gas Chemical Company, Inc.

Eiichi Honda

Yasuaki Yoshimura

Yuichiro Satake

Keita Noguchi

Manabu Hirakawa

Kazuki Kouno

Takashi Motoi

Kana Kumamoto

Nobuhiko Matsumoto

Masayoshi Takahashi

Noriyuki Kato

Mitsuharu Kitamura

Mitsuteru Kondo

Takashi Kashiba

Katsushi Nishimori

Kana Okada

Shinichi Ayuba

Shigeyuki Hirose

Shinichi Yonehama

Mitsutake Suematsu

Shoko Murata Suzuki

Tatsuki Nyuui

Toshiya Naito

Provided is a polyester carbonate resin having a constituent unit (I) represented by the following general formula (1), a constituent unit (II) represented by the following general formula (2), and a constituent unit (III) represented by the following general formula (3):

Polyester carbonate resin, and molded body which is obtained by molding resin composition containing resin

A polyester resin composition containing: wherein Ris a hydrogen atom, CHor CH, Rand Rare each independently a hydrogen atom or CH, and n is 0 or 1.

Polyester resin composition

Provided is a thermoplastic resin having a constituent unit represented by the following general formula (I):

Thermoplastic resin, molded object, and monomer for thermoplastic resin

A polyester carbonate resin is provided and includes a constituent unit represented by the following general formula (1), a constituent unit represented by the following general formula (2), and a constituent unit represented by the following general formula (3): wherein R represents hydrogen or an alkyl group containing 1 to 4 carbon atoms, wherein Q represents the following: wherein n and m each independently represent an integer of 0 to 5, and

Polyester carbonate resin and optical lens

An automobile component including a molded article containing a copolymerized polyester resin synthesized from a hydroxycarboxylic acid monomer, a diol monomer, and a dicarboxylic acid/ester monomer and having a unit (A) of formula (1), a diol unit (B), and a unit (C) derived from a dicarboxylic acid or an ester-forming derivative of the dicarboxylic acid. A content of the unit (A) in the total units of the copolymerized polyester resin is 60 to 90 mol %, The formula (1) is where Ris a hydrogen atom, CH, or CH, Rand Rare each independently a hydrogen atom or CH, and n is 0 or 1.

Molded article

Optical films comprising a polyester resin comprising a structural unit (A) of the following formula (1) wherein the content of the structural unit (A) based on the total structural units of the polyester resin is 76 mol % or greater:  wherein Ris a hydrogen atom, CH, or CH; Rand Ris each independently a hydrogen atom or CH; and n is 1, for example, Decahydro-1,4:5,8-dimethanonaphthalene-2-methoxycarbonyl-6(7)-methanol. Retardation films and circularly or elliptically polarizing plates comprising the optical films are also provided.

Optical film, retardation film, and polarizing plate

An object is to provide an optical polyester film and a transparent conductive film that are superior in transparency, heat resistance, optical properties, and adhesion. The optical polyester film includes: a base material containing a polyester resin containing a unit (A) of the following formula (1); and at least one functional layer disposed on at least one surface of the base material, wherein the at least one functional layer is selected from the group consisting of a hard coat layer, a transparent conductive layer, an anti-reflection layer, a gas barrier layer, and an adhesive layer. 

Optical polyester film and transparent conductive film

An object is to provide an optical lens having low water-absorbing capacity and superior in heat resistance, transparency, and optical characteristics (refractive index, Abbe's number, and photoelastic coefficient). The optical lens includes a polyester resin containing a unit (A) of the following formula (1). 

Optical lens

A copolymerized polyester resin containing a unit (A) represented by the following formula (1), a diol unit (B), and a unit (C) derived from a dicarboxylic acid or an ester-forming derivative of the dicarboxylic acid, 

Copolymerized polyester resin

A polyester resin having a diol constitutional unit and a dicarboxylic acid constitutional unit, wherein 20 to 100 mol % of the diol constitutional unit is a constitutional unit derived from a diol having a dinorbornane ring; a glass transition temperature of the polyester resin is 90&#xb0; C. or higher; an amount of heat of a crystallization exothermic peak in temperature drop of the polyester resin is 5 J/g or less; and a yellow index (YI) value as measured by a reflection method according to JIS K 7103 is 10 or less.

Polyester resin

A resin composition according to the present invention comprises: (A) a (meth)acrylic copolymer containing 5 to 85% by mass of a (meth)acrylate unit (a) represented by general formula (1) and 15 to 95% by mass of a methyl (meth)acrylate unit (b); and (B) a polycarbonate-type resin. 

(Meth)acrylic copolymer, resin composition, and molded product of said resin composition

A polyester resin according to the present invention comprises a constitutional unit represented by general formula (1): wherein Ris a hydrogen atom, CH, or CH; and Rand Rare each independently a hydrogen atom or CH.

Polyester resin and production method therefor

A resin according to the present invention is prepared by reacting a reaction product, which is obtained by Michael addition reaction between the following component (A) and the following component (B) and a subsequent amide group formation reaction, with the following component (C): [in formula (2), Rand Rindependently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms or an aryl group]; and

Active-energy-ray-curable resin, and gas barrier laminate comprising cured product of said resin

The present invention provides a polybenzoxazole resin containing a repeating unit represented by the following general formula (1): wherein Ris a tetravalent aromatic group; N atoms and O atoms which are bonded to Rare present in the form of pairs each consisting of an N atom and an O atom such that the N atom and the O atom in each pair are respectively bonded to adjacent two carbon atoms constituting the same aromatic ring in R; Ris an alkanediyl group having 1 to 6 carbon atoms; and n is an integer of 2 to 10000, which is excellent in electrical insulating properties, heat resistance, mechanical properties, physical properties, dimensional stability and the like, as well as a polybenzoxazole precursor capable of producing the polybenzoxazole resin which is excellent in solubility in solvents and storage stability.

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Kanagawa, Japan

Eiichi Honda